Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

Find the number of squares in the below-given picture.

What word begins and ends with an E, but has only one letter?

Can you replace the question mark with the correct number in the below table sequence?

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

Move three sticks of the spiral below to form a square.

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?